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Iron County, MO
6 cities and towns and 8 ZIP codes in Iron County, Missouri.
Population
9,446
Land area
550sq mi
People per sq mi
17
ZIP codes
8
Cities and towns in Iron County
Iron County at a glance
- Iron County is 81% less dense than Missouri as a whole.
- Households here earn a median of $48,850 a year, 31% less than the Missouri figure of $70,702.
- A typical owner-occupied home is valued at $119,300 (48% below Missouri) and median rent is $664 a month.
- The biggest population centers are Ironton (1,692), Viburnum (803) and Pilot Knob (653).
Local data for Iron County, MO
Counts from official public data
Housing and community stats
Iron County, MO, American Community Survey 2020-2024
Median household income
$48,850
Poverty rate
19.3%
Median home value
$119,300
Prices +15.6% in a year
Median rent
$664/mo
Homeownership
75.1%
Bachelor's or higher
19.0%
Median age
44.8
Average commute
26.9 min
Largest reported origins and ancestries: German Americans (1,498), Irish Americans (1,037), French Americans (342).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
4.8%
Aug 2026, -0.9 pts in a year
Average annual pay
$50,106
3,425 jobs, 2025
Income per person
$47,085
BEA, 2024
Federal spending
$75.69M
FY 2026, $7,936 per person
PPP loans
$8.31M
293 loans, 1,460 jobs reported
Campaign donations
$10.86K
Itemized, 2026 cycle
How people get to work
Iron County, MO, workers 16 and older. American Community Survey 5-year estimates
- Drove alone78.8%
- Carpooled10.9%
- Public transit0.0%
- Walked2.1%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.1%
- Worked from home7.0%
Average one-way commute: 26.9 minutes for people who do not work from home.
Environment and hazard risk
Iron County, MO, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: heat wave
Storm events since 1996
294
Most often thunderstorm wind
Flood insurance policies
37
0.5% of homes, county
July high / Jan low
88° / 21°F
46.3 inches of rain a year
Hazards, floods and storm historyCheck a flood zone5 historic places
Health statistics
Share of adults in Iron County, MO, CDC PLACES estimates
Obesity
42.3%
U.S. 33.3% +9.0 pts
Diabetes
15.0%
U.S. 12.1% +2.9 pts
Smoking
20.5%
U.S. 12.8% +7.7 pts
Uninsured (18-64)
10.0%
U.S. 11.1% -1.1 pts
Cities, towns and ZIP codes in Iron County
Population shown
Frequently asked questions
- What is the largest city in Iron County, MO?
- Ironton is the largest city or town in Iron County, with about 1,692 residents.
- How many ZIP codes are in Iron County?
- Iron County includes 8 ZIP Code Tabulation Areas, including 63620, 63621, 63623, 63636, 63650.
- What is the population of Iron County, MO?
- About 9,446 people live in Iron County, based on American Community Survey 5-year estimates.
- What counties border Iron County?
- Iron County borders St. Francois County, Washington County, Crawford County, Dent County, Madison County, Wayne County, Reynolds County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023